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Go (Golang) vs Java

Sumit Rawal answered on May 14, 2023 Popularity 9/10 Helpfulness 1/10

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  • Go (Golang) vs Java

    0

    Intent of this article is to go over both similarities and differences between the two widely used server side programming languages, Java and Go. I also have put pictorial charts for performance comparison between the two along with code as per my local testing.

    Similarities:-

    Compile-time type safety: They both are strongly statically typed language which helps compiler to catch certain issues earlier at compile time than at runtime.

    Memory management: They both have automated Garbage Collector for memory management for memory allocation and de-allocation.

    Concurrency: They both provide built in support for concurrency. Java has threads while Go has goroutines for this purpose.

    Server side programming: Both are used for server side programming and web services.

    Cross platform compatibility: Both are designed to be cross-platform compatible.

    Differences:-

    Java is object oriented programming (OOP) while Go is procedural. Though structs in Go can be used to simulate object oriented behavior.

    Java is compiled to bytecode (for JVM) while Go is directly compiled to native machine code which can be run on the target platform without the need for a separate interpreter.

    Java is memory intensive while Go is light on memory, operating cost for Java applications are higher.

    Java’s concurrency is dense and bulky as compared to Go’s. It takes excessive amount of memory to create and destroy Java threads. A server can only handle limited amount of Java threads. In contrary, goroutines are like “micro threads” which are extremely efficient to create and destroy. Go applications can execute tens of thousands of simultaneous goroutines with minimal CPU and memory resources. Go also makes it simple to coordinate resources across goroutines. Hence Go applications are ideal for serving highly saleable microservices. Please note, Java 19 onwards virtual threads are new concept added in Java which are much more lightweight than traditional threads in terms of resource consumption.

    Go programs are more compact than Java programs.

    Go does not support inheritance like Java. Go does support composition though.

    Go does not support Generics.  

    Popularity 9/10 Helpfulness 1/10 Language java
    Source: Grepper
    Tags: go java
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    Contributed on May 14 2023
    Sumit Rawal
    0 Answers  Avg Quality 2/10


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